Window-lifter.



E. G. SIMPSON. wmoow LIFTER.

APPLICATION FILED AUG. 18. I94?- 1 ,2'?6,277. Batented Aug. 20, 1918.

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E. G. SIMPSON.

I WlNDOWLIFTER. APPLICAHON FILED AUG.18.X9H-

1 ,276, 277 Patentedlug. 20, 1918.

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EMORY GLENN SIMPSON, OF DETROIT. MICHIGAN, ASSIGNOR TO FISHER. BODY C0230- BATION, 015 DETROIT, MICHIGAN, A CORPORATION OF NEW YORK.

WINDOW-LIFTER.

Specification of Letters Patent.

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Application filed August 18, 1917. Serial No. 186,834.

To all whom it may concern:

I Be it known that I, EMORY GLENN SmirsoN, a citizen of the United States, 1'GSl(i1Xig exact description of the same, such as will .enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings,

art of this specification.

This invention relates to window lifters. It has for its object a window lifter that is positive in its action of raising the window and forcing it over the fence and raising the window ofi from "the fence and dropping it over the window well.

In the drawings:

Figure l isan inside elevation of an automobile door frame, the trimming being removed.

Fig. 2 is a vertical section on the line B B of Fig. 1.

Fig. 3 is an enlarged detail of the lifting pin and the thrustand pulling cam.

' Fig. i is an enlarged detail showing position of the parts when the window 15 nearing the top of its travel, when the window has reached the upperextrerne of its travel, and when the window has been dropped over the fence.

Fig. 5 is an enlarged. detail partly iii-section, and taken from the opposite side of the view shown in Fig. 3, indicating how the window is thrust over the fence.

- Fig. 6'is a perspective of the thrust and pulling cam.

Fig. 7 is a detail of the plate which car rice the window.

a designates the door frame, the trimming of which has been removed. This door frame with the trimming in place forms a window-well Z) into which the window drops when lowered. Two sprocket wheels 0 and (Z form carriers for an endless chain c which carries a lifting pin f that engages in a horizontal slot g of the plate which is secured to the lower sash rail The latter is provided with a turncdovcr flange or hook is which is adapted to hook over the fence Z. This much of the construction is old.

The lifting pin does not hear directly against the plate '5 but a slid-able collar m is interposed between the lifting pin and the This avoids objectionable friction between the edges of the slot and the lifting pin when the window moves axially of the pin when being pushed over the fence or drawn haclc from the fence. The plate '5 is provided with an opening (Fig. 7') for leading to the horizontal slot 9. This allows the window and sash to be lifted out of the window-welland disengaged from the lifting apparatus whcu the window has reached its highest position. This makes a very easy way of disassembling the window from the rest of the apparatus when it is desired to repair it or inspect it.

Suitable locking devices to lock the window in any position of raising or lowering and which are automatically disengaged when the handle turned can be located in the casing'o, but inasmuch as these are old in the art, they are not shown nor described. Also a counter-balancing spring may he located in the larger portion of the housing ;0 but inasmuch, as these are old,-they are edges of the slot.

-- not shown nor described. v

ing a stamping with the well 1" secured to the" chain. flange s and a tilted wiper t. The plate 2' has a depending portion upon the left side, see Fig. 4, and a lower portion of this is bent to form an incline '21 (Fig. 5). Secured to the lower portion of the plate by riveting is a smaller plate 4) (F ig. l). This has a tail portion twisted out of the plane of plate o to form an incline to that parallels the incline it. These two. therefore, form an incline groove whose inclination is substantially that of the wiper t of the cam.

In lifting the window from the fence, the operation is as follows: lChe sprocket wheel (Fig. l) rotated countor clockwisc. This causes the lifting pin to raise the sash and the hook it off from the fence to the position shown in Fig. 5. in a further turning movement, the lifting pin having reached its maximum height causes the wiper t of the cum to enter the top of the incline cam-way (Fig. New very obviously this incline wiper is going to bear upon the incline 'w and pull the window to the left as shown in the dotted lines of Fig. After the cam has passed through the cam-way the window continues in a descending movement.

lifting the winciowthe operet-ion sinipiy reversed, the cam enters the semi-wax at t-iie bottom and being: guided therein by the turned-over nose of the incline w.

It is evident from the" above description that a simple eiiicient lifting and intern: movement mechanism is aiiordeii which is positive in action, requiring no epyinge to assist in the movement.

What I claim is:

1. In a window lifter the combination of a wheel, a iinezn mem ber cunning izizei'eovei', a plate having at .c ;11te0t-} 1oniiion iifting device engaged between the linear member and the plate, and 21 (323111 upon a, succeeding portion oi the linear nieinbeiwhich i'r.gaigingwi'th the said COIIiAICE-POYHOH "pushes the Window laterally over the fence and pniis it latei'a iiy from over the fence at the re quired time. c

2. In a.- winciow lifter, the combination of a Wheei, a, linear member running theieewei' piate carrying the window, lifting eoiinections between the plate and the lineal inenibei, the said piztte being provided with an inciined way, and a cam having a Wiper zuiuptexi in engage in said inclined Way to fierce the window over the fence and pull it away trom the fence at the required time.

3. In a window lifter, the combination of a wheei, :1 iineai member running. theieover, a plate for carrying the window proi'ided with a portion bent into an incline, a second incline securai to the plate substantially parziiieiing the first incline to form an ineiine way and a mini secured to a portion of the chain and n'oviiied with :1 Wiper adapted to travel in the cairn-way between the two inciines to push the window over the fence and pnii it away from the fence at the appointed time 1 in testimony whereof, I sign this specification. 7

EMORY GLENN SIMPSUN. 

